propagateKEP.h

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 *   Copyright (C) 2004-2015 The PaGMO development team,                     *
 *   Advanced Concepts Team (ACT), European Space Agency (ESA)               *
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#ifndef PROPAGATEKEP_H
#define PROPAGATEKEP_H

#include "../config.h"

void __PAGMO_VISIBLE_FUNC propagateKEP(const double *, const double *, const double &, const double &,
                                  double *, double *);

void IC2par(const double*, const double*, const double &, double*);

void par2IC(const double*, const double &, double*, double*);

// Returns the cross product of the vectors X and Y.
// That is, z = X x Y.  X and Y must be 3 element
// vectors.
inline void cross(const double *x, const double *y, double *z)
{
   z[0] = x[1]*y[2] - x[2]*y[1];
   z[1] = x[2]*y[0] - x[0]*y[2];
   z[2] = x[0]*y[1] - x[1]*y[0];
}

#endif